Electronics Forum | Mon Jan 08 17:25:39 EST 2018 | vassago
Hi, > > What kind of Quadra do you need? > > We > have a couple of mechanical centering quadras, > one is in good working condition, the other one > we use for spares. If you are interested we can > offer them to you with A LOT of feeders and
Electronics Forum | Thu Aug 10 07:29:43 EDT 2017 | stivais
How do you evaluate the soldering quality for those QFNs? X-Ray or AOI? For some QFNs (and other bottom termination components) it's not supposed to have solder fillets on toes. It's also noted in IPC-A-610 (Rev.F 8.3.13). Take a look at your QFN ch
Electronics Forum | Thu Aug 10 12:51:05 EDT 2017 | emeto
I dug this in the past and I couldn't find much as well. It is a short history, as it is all based on a digital camera(first attempts start 80s and 90s). I want to say most of the applications of CMOS and CCD cameras we started seeing around the yea
Electronics Forum | Thu Aug 31 02:10:42 EDT 2017 | hxamalia
Hello ALL Good day , it is Amalia from HX Circuit Technology Co.,Ltd in China, we are a prefessional PCB factory with many years. We are focusing on quick lead time for PCB with good service . please contact with me now ,thanks Email: amalia@hx-c
Electronics Forum | Fri Aug 11 18:19:30 EDT 2017 | selectpcb
I just opened a small CM for a customer that required me to purchased a GEM Topaz X. I am told that I need to use pad2pad in order to download the XY data too. I've looked all over the place for this software but cannot locate it. does anyone know wh
Electronics Forum | Fri Aug 11 22:50:57 EDT 2017 | heros_electronics
Anyone who knows how to prevent such flaw? Tombstones are those lifted components from one sides. This results in costly and time-consuming amounts of touch-up and re-work after the assembly is completed. For the customers, this extra work translate
Electronics Forum | Fri Aug 18 03:46:29 EDT 2017 | stivais
The first reply from Tsvetan Usunov already answered your question - there are no thermals for one side of the chips. You can try to reduce the phenomenon by using different solder pastes, tuning your soldering profile or even switching to different
Electronics Forum | Mon Aug 14 03:38:37 EDT 2017 | spoiltforchoice
The pads in the datasheet should suffice. The TDK part really isn't all that big but its reflow profile indicates it is not exactly the most tolerant device with regards to heat. 245C for 5s is not a lot, I would check very carefully that your profil
Electronics Forum | Mon Aug 14 15:00:46 EDT 2017 | charliedci
We run a "no clean" soldering process, class II primarily, conformal coating using a Humiseal acrylic coating, applied by machine and by brush. We have seen very few coating issues in my 10+ years from contamination by body oils. We are not using glo
Electronics Forum | Sun Aug 13 05:50:04 EDT 2017 | micomac
During the refill of the solder bath in our mySelective 6746 selective soldering machine the RTD for the solder bath has become defective. There is no part No and the manual doesnt specify. Does anyone know which RTD is the correct one and possibly k
